package com.lee.utils;

import org.apache.shiro.SecurityUtils;
import org.apache.shiro.session.Session;
import org.apache.shiro.subject.PrincipalCollection;
import org.apache.shiro.subject.SimplePrincipalCollection;
import org.apache.shiro.subject.Subject;

import com.lee.system.entity.User;


/**
 * shiro 工具类
 *
 * @author LiPengFei
 */
public class ShiroUtils {

    public static Subject getSubjct() {

        return SecurityUtils.getSubject();
    }

    public static Session getSession() {

        return SecurityUtils.getSubject().getSession();
    }

    public static void logout() {

        getSubjct().logout();
    }

    public static User getUser() {

        return (User) getSubjct().getPrincipal();
    }

    public static void setUser(User user) {
        Subject subject = getSubjct();
        PrincipalCollection principalCollection = subject.getPrincipals();
        String realmName = principalCollection.getRealmNames().iterator().next();
        PrincipalCollection newPrincipalCollection = new SimplePrincipalCollection(user, realmName);
        // 重新加载Principal
        subject.runAs(newPrincipalCollection);
    }

    public static Long getUserId() {

        return getUser().getUserId().longValue();
    }

    public static String getLoginName() {

        return getUser().getLoginName();
    }

    public static String getIp() {
        String ip = getSubjct().getSession().getHost();
        return "0:0:0:0:0:0:0:1".equals(ip)?"127.0.0.1":ip;
    }

    public static String getSessionId() {

        return String.valueOf(getSubjct().getSession().getId());
    }
}
